Winding apparatus



Sept. 28,1926 1,601,561

C. W. HUBBARD WINDING APPARATUS Original Filed 0st.' 4. 1919 3Sheets-Shoat 1 Fig.1.

. InvenTor. Charms W. Hubbard v YifiemWkW Attys Sept. 28 1926;

C. W. HUBBARD WINDING APPARATUS Original Filed Octv 4, 1919 3Sheets-Shunt 2 Invemor. Charles W. Hubbard YMMkW Anya C. W. HUBBARDWINDING APPARATUS Original Filed 001. 4, 1919 3 a-Slmat 3 Fig.7.

Inventor, Charles W, Hubbard WQW Patented Sept. 2 8, 1926.

UNITED STATES CHARLES WJHUBBABD, OF WESTON, MASSACHUSETTS.

WINDING APPARATUS.

Applicationfiled October 4, 1919, Serial No. 328,383. Renewed May 8,1926.

This invention relates to winding apparatus of that general type shownin my prior Patents No. 1,282,686, July .19, 1917,

and No. 1,258,411, March 5, 1918, and which.

The object of the present invention is to prov de a novel windingmechanism of this type having improved means for actuating andcontrolling the laying arm and compensating arm, an improved means forfeed ing the yarn to the winding head and other features of improvement,all aswi l be more fully hereinafter set forth.-

In order to give an understanding of my invention, I have illustrated inthe drawings some selected embodiments thereof which will now bedescribed, after which the novel features will be pointed out in theappended claims.

In the drawings, Fig. 1 is a vertical sectional view of a windingapparatus embodying my invention;

Fig. 2 is a section on the line, 2-2, Fig. 1;

Fig. 3 is a section on the line 33, Fig. 1;

Fig. 1 is a detail of the differential gear controlling the cams;

Fig. 5 is a plan view of the device;

Fig. 6 is a side elevation of the device showing the winding headseparated from the yarn receiver and indicating the manner in which theyarn is cut;

Fig. is a section taken on the line 7T, Fig. 6. r

In the drawings, 1 indicates the yarn re ceiver which is preferably inthe form of. a cylindrical receptacle, 2 indicates a yarn supportsituated within the yarn receiver 1 I and on which the yarn mass 3. issupported, and d indicates generally the winding head by which the yarnmass 3 is built up in the yarn receiver in layers extending transverselyto the axis of rotation. I

The yarn support 2 may have any suitable construction, that herein shownbeing similiar to the yarn support which is illustrated and described inmy Patent No.

1,394,732, dated October 25th, 1921. p

The winding head 1 is fast on a shaft 5 journal'ed in suitable bearings6, said shaft being rotated by some suitable means B01 loops to be laidin transverse layers.

.s .11s purpose, i hare shown 37 test.

on the shaft 5 which meshes with and is driven by a driving gear 38mounted on a shaft 39'journal'ed in the frame 10. Said winding headcomprises a supporting member or housing 7 in which is received thedifferential gearing and cams to be hereinafter referred to and whichsupports a winding plate 8 that rests on the yarn mass 3. This windingplate 8 is sustained from the housing or member 7 by means of twooppositely-disposed arms 9 and it is, provided with a yarn-guiding slot10' through which the yarn is delivered to the yarn mass, all as usualin devices of this character.

One feature of my present invention relates to means for guiding andcontrolling the yarn as it is delivered through the guidingslot 10.Supported in the memher 7 is a vertical rock shaft 11 which carries atits lower end a yarn-laying arm 12 and means are provided foroscillating the rock shaft 11 to cause the end 13 of said arm 12. tovibrate longitudinally of the slot The yarn 14; is delivered to theyarnlaying arm 12 through the shaft 5 which is hollow'for this purpose,and the vibration of the arm 12 will traverse the yarn-back and forth inthe slot 10, thus causing the yarn to be laid in loops as in theabovementioned patents. For thus'vibrating-the rock shaft 11 I employherein a novel cam mechanism which is actuated by differential gearingsituated within the housing 7. The upper end of the rock shaft 11 isprovided with a crank arm 15 carrying a roll 16 which rests against theperiphery of a cam 17, said roll being held in contact with the cam bymeans of a spring 18, one end of which is secured to an arm 19 extendingfrom the rock shaft, and the other end of which is secured tothe housing7.

During the rotation of the housing 7 the rock shaft is carried about thecam 17 and the latter acts through the crank arm 15'to vibrate said rockshaft and thus give the yarn-laying arm 12 its traversing movement. Inapparatus of this type it is customary to so control the operation ofthe yarn-laying arm that each loop will be laid either immediately inadvance of or immediately behind the previous loop, thus causing the Inthe present construction this end is secured by a differential mechanismwhich gradually shifts the position of the cam 17 5 Said cam $1.7 madefast to gear 20 which meshes with an intermediate pinion 21 that isjournaled'lon astud 22 carried by thehousing 7. This intermediate gear21 also meshes with a stationary gear 23, said gear being heldstationary by being fast on a sleeve 2 1 which in turn is made fast tothe bearing 6.

The gear 20 has either one more or one less tooth than the gear 23 andsince both gears are meshing with the pinion 21 and the latter is beingrotated about the stationary gear 23 by the rotation of the ho'using 7it will result that at each rotation of said housing 7 the gear 20 willbe either ad vanced or retarded one tooth. The action of the cam 17 willthus be either advanced or retarded slightly'at each rotation with theresult that the loops will be'laid side by side as usual in devices ofthis character.

The apparatus herein shown is of that type which has a compensating armcooperating with the yarn-laying arm '12 for maintaining an eventensionon the yarn during the vibration of the' yarn-laying arm. Thiscompensating arm is indicated at 25 and it is carried by a vertical rockshaft 26 similar to the rock shaft 11, said rock shaft being journaledin a bearing 27 carried by the housing 7. The rock shaft 26 has at itsupper end a crank arm 23 provided with a roll 29 which rests against'theperiphery of a compensating cam 30 which is rigid with the traversingcam 17. This compensating cam is designed to give the proper vibratingmovement to the compensating arm 25 so that the latter will take upslack in the yarn when the yarn-laying arm is moving toward the axis ofrotation and give up yarn'when the yarn-laying arm is moving in theopposite direction.

It will be noted that the mechanism for operating the yarn-traversingarm and compensating arm is very simple and comprises merely the twocams with the simple dilterential gearing. It is also entirely enclosedwithin the housing 7 so that there are no exposed moving parts to becaught by the yarn.

My present invention also includes a novel yarn-feeding device forpositively feeding yarn to the winding head at a predetermined rate ofspeed. This feeding device isin the form of a friction feed wheel 31which is fast on the shaft 5 at its upper end and which frictionallyengages an idler or presser wheel 32 that is journaled on a stud 33,carried by an arm 34 extending from the frame. The yarn 14 passesbetween the presser roll 32 and feed roll 31 and then passes downthrough the hollow shaft 5 to the compensating arm 25 and yarn-layingarm 12. I haveillustrated the yarn guides 35 which serve to hold theyarn as it is fed by the feed roll '31. Since this feed roll is fast onthe shaft 5 it will positively draw yarn frointhe source of supply at aspeed ed on'separate rock shafts.

corresponding to that at which the yarn is wound and thus thecompensating arm and yarn-laying arms are relieved entirely from anystrain due to drawing yarn from the source ofsupply. The yarn will,therefore, be laid under a constant tension at all times, thus producinga uniformly compact yarn mass 3. The yarn container 1 is shown assecured to a cap or head 41 which is carried by the member 6, and saidyarn container is so supported that when it is filled it can bedisconnected from the housing 11 and lowered so as to withdraw it fromthe windinghead, as shown in Fig. 6. When the yarn container has thusbeen filled and is lowered towithdraw it from the winding head it isnecessary to cut the yarn leading from the yarn mass to the windingplate before the container can be entirely removed from the machine.'When an empty yarn container is replaced in the machine it is necessarythat the end of the yarn should be threaded through the slot 10 and heldbe neath the winding plate so that when the machine is started said endwill be retained on the yarn support thereby to ensure the properwinding action. I have provided herein an improved knife for thussevering the thread which is so constructed that the severing of thethread can be done without de-threading the winding plate' One of thebearings 27 has secured thereto a knife member 42 provided with acutting edge 43, and the winding plate 8 has a notch 67 in itsperiphery. When the yarn container has been lowered and withdrawn fromthe winding head, as shown in Fig. 6, the portion 14?" of the yarnwhichextends from the winding plate to the yarn mass is pulled out andcarried under the winding plate 8 and into the notch 67 and then againstthe cutting edge 13 of the knife, as shown in dotted lines Fig. 6. Thisoperation of severing the yarn does not remove it from the slot 10 andthe notch 67 holds the severed end heneath the plate so that when anempty yar receiver is placed in the machine the severed end will beretainedbeneath the winding plate and will be held between said plateand the yarn support until the winding will be properly started.

In Figs. 1, 2 and 3 I have shown'the yarnlaying arm and compensating armas mount- In Figs. 6 and 7 I have shown a construction where these twoarms are carried by the same rock shaft which is indicated at 4-1. herethis construction is employed only one cam will be necessary instead ofthe two earns '17 and 30. The one-cam construction shown in Figs. 6 and7 does not, however, give as perfect compensation asthe two-camconstruction.

' I claim:

1. In a winding apparatus, the combination with a yarn receiver, of arotatable shaft, and a winding head mounted there-on, said winding headincluding a rock shaft situated non-axially of the winding head andextending parallel to' the axis of rotation, a yarn-laying arm extendingfrom said rock shaft, and a cam member about which the reel: shaft isrotated by the head and which oscillates said shaft as the head rotates.

2. In a winding apparatus, the combination with a yarn receiver, of arotatable shaft, and a winding head mounted thereon, said winding headincluding a rock shaft situated non-axially of the winding head andextending parallel to the axis ofrotation, a yarn-laying arm extendingfrom said rock shaft, a cam member about which the rock shaft is rotatedby the head and which oscillates said shaft as the head rotates, andcompensating means acting on the yarn before it is delivered to saidyarn-laying arm;

3. In a winding apparatus, the combina tion with a yarn receiver,'of arotatable shaft, and a winding head mounted thereon, said winding headincluding a rock shaft situated non-axially of the winding head andextending parallel to the axis of rotation, a yarn-laying arm extendingfrom said rock shaft, a cam member about which the rock shaft is rotatedby the head and which oscillates said shaft as the head rotates, and avibrating compensating arm acting on the yarn before it is delivered totheyarn-laying arm.

4;. In a winding apparatus, the combination with a yarn receiver, of arotatable shaft, a winding head carried thereby and comprising a windingplate resting on the yarn and provided with a yarn-laying slot, two rockshafts extending parallel to the axis of rotation of the shaft, ayarn-laying arm extending from one rock shaft, a compensating armextending from the other rock shaft, and cam members about which saidshafts are carried during the rotation of the winding head and whichcause said shafts'to oscillate as the winding head rotates.

In a winding apparatus, the combination with a yarn receiver, of arotatable shaft, and a winding head mounted thereon, said winding headincluding a rock shaft situated nonaxiaily of the winding head andextending parallel to the axis of rotation, a yarn-laying arm extendingfrom said rook shaft, a cam member about which the rock shaft is rotatedby the head and which oscillates said shaft as the head rotates, andmeans to give the cam a relatively slow rotation about the axis ofrotation of the shaft.

6. In a winding apparatus, the combination with a yarn receiver, of arotatable shaft, and a winding head mounted thereon, said winding headincluding a rock shaft situated non-axially of the winding head andextending parallel to the axis of rotation, a yarn-laying arm extendingfrom said recln shaft, a cam member about which the rock shaft isrotated by the head and which oscillates said shaft as the head rotates,and means actuated by the rotation of the shaft to give the cam arelatively slow rotative movement about said axis.

7. In a winding apparatus, the combination with a yarn receiver, of arotatable shaft, a winding head mounted thereon, said winding headincluding a rock shaft situated non-axially of the winding head andextending parallel to the axis of rotation, a yarn-laying arm extendingfrom said rock shaft, a cam member about which the rock shaft is rotatedby the head and which oscillates said shaft as the head rotates, a gearrigid with said cam member, a second stationary gear, said gears havinga different number of teeth and both being situated in axial alinementwith said shaft, and an in.- termediate gear meshing with both of thefirst-mentioned gears.

8. In a winding apparatus, the combination with a yarn receiver, of arotatable shaft, a supporting member or head fast thereto, two rocl;shafts journaled in said supporting member and extending parallel to therotatable shaft, a winding plate suspended from said supporting member,a yarn-laying arm extending from one rock shaft, a compensating armextending from the other rock shaft, each rock shaft having a crank arm,two team members axially alined with the rotatable shaft and actingagainst said crank arms, and springs for maintaining said crank arms inengagement with said cams.

9. In a winding apparatus, the combination with a yarn receiver, of arotatable shaft, a supporting member or head fast thereto, two rockshafts journaled in said supporting member and extending parallel to therotatable shaft, a winding plate suspended from said supporting member,a yarn-laying arm extending from one rock shaft, a com,

pensating arm extending from the other rock shaft, each rock shafthaving a crank arm, two cam members axially alined with the rotatableshaft and. acting against said crank arms, springs for maintaining saidcrank arms in engagement with said cams, and means for rotating saidcams slowly.

10. In. a winding apparatus,the combination with a yarn receiver, of arotatable shaft, a supporting member or head fast thereto, two rockshafts journaled in said supporting member and extending parallel to therotatable shaft, a winding plate suspended from said supporting member,a yarn-laying arm extending from one rock shaft, a compensating armextending from the other rock shaft, each rock shaft having a crank arm,two cam members axially alined with therotatable shaft and actingagainst said crank arms, springs for maintaining said'crank arms inengagement with said cams, a gear rigid with said earns, a secondstationar gear, a pinion carried by said supporting member and meshingwlth both gears, said gears having a different number of teeth wherebythe cams are gradually advanced by the rotary motion of the supportingmember.

11. In a winding apparatus, the combination with a yarn receiver, of awinding head for laying the yarn in said yarn receiver in ere extendingtransversely to the axis of rotation, a hollow shaft on wnich saidwinding head is supported and through which the yarn is delivered to thewinding head, means for rotating said shaft, and a pair of feed rollsfor delivering yarn to the hollow shaft, said feed rolis being situatedat the end of the shaft and one of them being rigid with the shaft.

12. In a winding apparatus, the combination with a yarn receiver, of aWinding head for laying the yarn in said yarn receiver in layersextending transversely to the axis of rotation, ahollow shaft on whichsaid winding head supported and through which the yarn is delivered tosaid head, means to rotate said shaft, a feed roll carried by said shaftat its upper end, a presser roll with which the feed roll has frictionalcontact, and means for guiding the yarn as it is led to the feed rolland from the feed roll to the end of the hollow shaft.

13. In a winding apparatus, the combination with a yarn receiver, of awinding head comprising a supporting member, a winding plate connected,to said member and provided with a y rn-laying slot, means fortraversing the yarn in said slot, and a knife member carried by thewinding head and situated above the winding plate.

14-; In a winding apparatus, the combination with a rotatable yarnreceiver adapt ed to contain a yarn mass, of a winding head resting onthe yarn mass in the yarn receiver and operatingto build up said mass inlayers extending transversely to the s of rotation, a hollow shaft onwhich rd winding head is supported, and means 'ied by said shaft forfeeding yarn uniformly to the winding head. I

15. In a winding apparatus, the combination with yarn receiver, of'arotary winding head for laying the yarn in said yarn receiver in layersextending transversely of the axis of rotation, a hollow shaft on. whichsaid winding head is supshaft, a compei ported and through which theyarn is delivered to the winding head, means, for retating said shaft, apair of feed rolls for delivering the yarn to the entering end of saidshaft, one of said feed rolls being. fixed on the shaft and the othersupported independently thereof.

16. In an apparatus of the class described, the combination with a yarnreceiver, of a winding head, means to give the winding head and yarnreceiver a relative rotary movement, said winding head including a rockshaft situated non-axially thereof and extending parallel to the axis ofthe relative rotary movement, a yarnlaying. arm :Itcnding from said rochshaft, andmeans to oscillate said arm in a plane extending at rightangles to said axis.

17. In an apparatus of the class described, the combination with a yarnreceiver, of a winding head, means to give the yarn receiver and windinghead a relative rotary movement, said winding head. including two rockshafts situated non-axially of the winding head but extending parallelto the movement, a yarn-laying arm carried by one of the shafts, acompensating arm carried by the other shaft, and means for oseil latingeach arm in a plane perpendicular to said axis.

18. in an apparatus of the class described, the combination with a yarnreceiver, of a winding head, means to give the winding headand yarnreceiver a relative rotary movement, said winding head including a rockshaft situated non-axially thereof and extending parallel to the axis ofthe relative rotary movement, a yarnlaying arm extending from said ro kshaft, and a cam situated axially of the winding headfor oscillatingsaid rock shaft.

19. In an apparatus of the class described, the combination with a yarnreceiver, of a winding head, means to give the winding head and yarnreceiver a relative rotary movement, said winding head having two rockshafts both situated non-axiaily of the winding head but extendingparallel to the axial line of the relative movement, a yarn-laying. armcarried by one roclr eating arn'i carried by the other rock shaft, and acam device situated coaxially with said winding head and operating tooscillate both rock shafts.

In testimony whereof, I have signed my name to this specification.

CHARLES l/V. HUBBARD.

l line of the relative rotary-

